高准确度标准电能表不同测量方式的测量误差  

Measurement Error of High Veracity Reference Energy Meter in Diferent Measure Methods

作　　者：左敏柱 尚振东[2] 李济顺[2] 武充沛[2] 

机构地区：[1]河南思达高科技股份有限公司电测分公司,河南郑州450001 [2]河南科技大学河南省高等学校先进制造技术重点学科开放实验室,河南洛阳471003

出　　处：《河南科技大学学报（自然科学版）》2004年第4期25-27,共3页Journal of Henan University of Science And Technology:Natural Science

基　　金：河南省高等学校先进制造技术重点学科开放实验基金资助项目

摘　　要：分析了采用标准电能表对三相三线电能表进行检验时,不同测量方式的优缺点。三表法测量无间断点,校验过程中需改变电流元件接线;矢量法采样精度高,校验时需标准表与系统电压中性点连接;两表法测量有间断点,校验时需改变电压元件接线。实验结果表明,三表法和矢量法比两表法相对误差较小。Advantages and disadvantages of three methods of reference meter connection for measurement of three phase three wire energy meter are introduced.Three-meter method has no measure discontinuity but current component connectionneeds to be changed.Vector synthetic method has high measure precision but reference energy meter needs to be connected to zero point of reference meter and system.Two-meter method has measure discontinuity and voltage connection needs to be changed.The experiment results showed that three-meter method and vector synthetic method have more veracious than two-meter method.

关 键 词：电能表 测量方式 测量误差 两表法 三表法 矢量法 

分 类 号：TM933.4[电气工程—电力电子与电力传动]